Migrate WTF::HashSet::add() to ::insert() [part 1 of N]

third_party/WebKit/Source/platform/loader/fetch/CrossOriginAccessControl.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 381 matching lines @@
   }
 }
 
 void parseAccessControlExposeHeadersAllowList(const String& headerValue,
                                               HTTPHeaderSet& headerSet) {
   Vector<String> headers;
   headerValue.split(',', false, headers);
   for (unsigned headerCount = 0; headerCount < headers.size(); headerCount++) {
     String strippedHeader = headers[headerCount].stripWhiteSpace();
     if (!strippedHeader.isEmpty())
-      headerSet.add(strippedHeader);
+      headerSet.insert(strippedHeader);
   }
 }
 
 void extractCorsExposedHeaderNamesList(const ResourceResponse& response,
                                        HTTPHeaderSet& headerSet) {
   // If a response was fetched via a service worker, it will always have
   // corsExposedHeaderNames set, either from the Access-Control-Expose-Headers
   // header, or explicitly via foreign fetch. For requests that didn't come from
   // a service worker, foreign fetch doesn't apply so just parse the CORS
   // header.
   if (response.wasFetchedViaServiceWorker()) {
     for (const auto& header : response.corsExposedHeaderNames())
-      headerSet.add(header);
+      headerSet.insert(header);
     return;
   }
   parseAccessControlExposeHeadersAllowList(
       response.httpHeaderField(HTTPNames::Access_Control_Expose_Headers),
       headerSet);
 }
 
 CrossOriginAccessControl::RedirectStatus
 CrossOriginAccessControl::checkRedirectLocation(const KURL& requestURL) {
   // Block non HTTP(S) schemes as specified in the step 4 in
@@ skipping 106 matching lines @@
     //
     // This is equivalent to the step 2 in
     // https://fetch.spec.whatwg.org/#http-network-or-cache-fetch
     if (options.credentialsRequested == ClientDidNotRequestCredentials)
       options.allowCredentials = DoNotAllowStoredCredentials;
   }
   return true;
 }
 
 }  // namespace blink